Features; Outdoor Structure; Dc Fan And Fan Motor - Haier AV08NMSETA Service Manual

1.2 Features

Outdoor structure

(8/10/12HP SIDE DISCHARGE)
More Bigger Outdoor Capacity, More Flexible Application
High efficiency DC fan motor
• DC fan motor with stepless inverer
control,efficiency increase 45% comparing with
AC motor and power input largely decrease
Large diameter fan
•
570mm big diameter axial flow fan
•
Zigzag design, reduce airflow disturbance,
air volume is bigger, the noise is lower
High efficiency condenser
·New type high efficiency Ø8 inner
grooved tube
·New hydrophilic corrugated fissure fin,
high efficiency

DC fan and fan motor

DC inverter fan motor more higher efficiency in part load running
■
16-stage speed control; high efficiency running especially in low speed
■
Efficiency increase 45% comparing with AC motor and power input largely decrease big diameter fan
■
570mm big diameter fan, more big air flow and more higher efficiency
100
45%
80
35%
60
25%
40
20
0
0 200 400 600
AC motor efficiency
efficiency
45%
enhanced
100
85%
80
87.5%
60
95%
40
20
0
800 1000 0 200 400
DC motor efficiency
Vector inverter control
• 180 degrees sine wave vector control,
64-bit operation
• High precision control, to achieve high
efficiency and lower noise
Double pressure sensor
· Equipped with high and low voltage
Pressure double sensors
· Accurate Pressure control, the system run
more smoothly, more energy efficiency
Twin rotary DC Inverter compressor
· High chamber DC INVERTER twin rotary
conmpressor
· Small vibration, low noise, high energy
effciency
600 800 1000
2 2
Ø570mm fan
DC motor